Electra Standalone Encoder. Getting Started Guide RELEASE 01. Rev A

Transcription

1 Electra 9200 Standalone Encoder RELEASE 01 Getting Started Guide Rev A

2 Manual Part No. MAN-SAEGS-005 December 18, 2013 Copyright /18/13 Harmonic Inc. All rights reserved. Omneon, and the Omneon logo are trademarks of Harmonic Inc. Disclaimer Harmonic reserves the right to alter the equipment specifications and descriptions in this publication without prior notice. No part of this publication shall be deemed to be part of any contract or warranty unless specifically incorporated by reference into such contract or warranty. The information contained herein is merely descriptive in nature, and does not constitute a binding offer for sale of the product described herein. Harmonic assumes no responsibility or liability arising from the use of the products described herein, except as expressly agreed to in writing by Harmonic. The use and purchase of this product do not convey a license under any patent rights, copyrights, trademark rights, or any intellectual property rights of Harmonic. 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4 NOTE: The Note symbol calls your attention to additional information that you will benefit from heeding. It may be used to call attention to an especially important piece of information you need, or it may provide additional information that applies in only some carefully delineated circumstances. IMPORTANT: The Important symbol calls your attention to information that should stand out when you are reading product details and procedural information. TIP: The Tip symbol calls your attention to parenthetical information that is not necessary for performing a given procedure, but which, if followed, might make the procedure or its subsequent steps easier, smoother, or more efficient. In addition to these symbols, this guide may use the following text conventions: Convention Typed Command <Ctrl>, <Ctrl>+<Shift> Links Bold ScreenOutput Emphasis Explanation Indicates the text that you type in at the keyboard prompt. A key or key sequence to press. The italics in blue text to indicate Cross-references, and hyperlinked cross-references in online documents. Indicates a button to click, or a menu item to select. The text that is displayed on a computer screen. The italics text used for emphasis and document references. NOTE: You require Adobe Reader or Adobe Acrobat version 6.0 or later to open the PDF files. You can download Adobe Reader free of charge from Harmonic Inc. All rights reserved. 4

5 Table of Contents Table of Contents Chapter 1: Introduction... 6 Product Overview DiviTrackMX Chapter 2: Installation and Startup... 7 Using SAG, the web GUI Web Browser Requirements Displaying SAG Navigating with SAG Installing Platform Firmware License Requirements Setting Up the Device What s Next Chapter 3: Electra 9200 Encoding Tutorial...13 Workflow Configuring an Encoder with SDI Input and IP or ASI Output Defining the Logical Inputs Defining the Logical Outputs Configuring the Output Summary Chapter 4: Creating a DiviTrack DTMX Pool...25 Creating a Pool Harmonic Inc. All rights reserved. 5 Electra 9200 Release 01, Rev A

6 Chapter 1 Introduction This manual provides an overview of the Harmonic Electra 9200 series encoder platform. It has the following chapters: Chapter 1, Introduction (this chapter), provides an overview of the Electra 9200 encoder. Chapter 2, Installation and Startup, describes how to start and use the standalone encoder web GUI, SAG. It tells how to install new platform software, and gives an overview of licensing requirements. Chapter 3, Electra 9200 Encoding Tutorial, includes a tutorial for encoder platform configuration on the Electra 9200, with steps to configure end-to-end encoding for a service that includes SDI input, encoding of one video and one audio, and output over an IP and/or ASI transport Chapter 4, Creating a DiviTrack DTMX Pool, shows how to create a pool and add two video streams to the pool. Product Overview The Electra 9200 series of encoders provide flexible hardware platforms that support a wide range of encoding needs including: Multiple input types SD and/or HD SDI for encoding Support for multiple audio encoding adapters Multiple output types IP and ASI The encoders support a range of use cases, including conversion between SD and HD formats, conversion for IPTV, or cable time-shifting. This guide describes a basic end-to-end workflow for a single service. The data flow discussed in this guide is: SDI Input Encoding IP or ASI Transport Output. DiviTrackMX The Electra 9200 provides standalone statistical multiplexing through DiviTrackMX (DTMX). Using DTMX, the encoder generates up to eight variable bitrate (VBR) streams that are incorporated into one constant bitrate (CBR) transport. NOTE: You can also configure and use DiviTrack on platforms managed by Harmonic NMX. You can create pools that are managed by a single encoder, and DiviTrack over IP pools that manage streams from multiple devices in communication with a ProStream multiplexer. When configuring DTMX, you supply a pool bitrate, the minimum and maximum bitrates for each stream, and the stream priority. The encoder compares the complexity of each stream on a frame-by-frame basis, considers the stream priority (if applicable), and assigns an appropriate bit rate to each stream within the transport. Chapter 4, Creating a DiviTrack DTMX Pool shows how to create and configure a DTMX pool. For information about DTMX, see the online help Harmonic Inc. All rights reserved. 6 Electra 9200 Release 01, Rev A

7 Chapter 2 Installation and Startup This chapter introduces SAG, the standalone encoder GUI. It tells how to launch SAG, and how to install encoder platform firmware using SAG. It provides a brief overview of encoding feature licensing requirements. Using SAG, the web GUI Harmonic provides a web browser-based GUI to manage standalone encoder platforms, called SAG. It installs with the platform firmware, and launches automatically when you access the platform management IP address from any supported web browser. Each encoder platform uses SAG to expose its features. The platform features you can configure and use depend on the hardware configuration of that platform. You use this GUI to configure the platform s inputs, processing, and outputs. The tasks you perform with SAG include: Platform configuration, including firmware upgrades, HW review and reset, management port IP address, backup and restore of service configuration. Administration of the device, including setting device name, device clock, communication with other servers, global defaults. Configuration of encoding services, including configuring encoding of video, audio, other streams, creation of descriptors, creation of output TS, and PSI table management. DiviTrack statistical multiplexing of video streams within the device, to optimize bandwidth usage. Alarm monitoring and review. Before you can use SAG to access an encoder platform, the device must be wired to the network, and it must be configured with its network properties. The Installation Guide for your encoder platform includes instructions to: Wire the platform to the control network Set the platform s IP address via the front panel Set the subnet mask and the default gateway address Web Browser Requirements SAG requires the following: Supported browsers: Internet Explorer : v8 (may be slow), v9, v10, v11 Chrome: v29, v30, v31 Firefox : v23, v24, v25 Opera : v12.15 Safari: v6, v5 Popup blockers must be disabled Javascript must be enabled 2013 Harmonic Inc. All rights reserved. 7 Electra 9200 Release 01, Rev A

8 Chapter 2 Installation and Startup Using SAG, the web GUI Displaying SAG Before you can use SAG, you must know the Electra 9200 device s management port IP address. To display SAG, enter in the browser, where <IP_Address> is the address of the management port on the Electra 9200 you want to configure. If you don t know the IP address, ask your network administrator, or display the address on the encoder s front panel. The platform displays a SAG page similar to Figure 2 1 on page 8. Navigating with SAG When you browse to an encoder device, SAG displays information about that device. Navigation tabs to move between task pages Configuration page Status bar shows whether device is standalone or managed by NMX, device name and model, active alarms, date/time Apply changes to device Platform HW: inputs Input services Output services Platform HW: outputs Active alarms log Help for each panel and dialog Figure 2 1: Web Gui Components The screen in Figure 2 1 shows an encoder with physical input of four SDI ports, and the corresponding logical input objects; Baseband SDI 1 4. One video and one audio stream have been added under Baseband SDI Harmonic Inc. All rights reserved. 8 Electra 9200 Release 01, Rev A

9 Chapter 2 Installation and Startup Using SAG, the web GUI The output TS is a logical output object. The services from the input Baseband SDI 1 have been added to TS 1 to create one program with a video and an audio stream. The encoder has both IP and ASI physical output ports. The GbE port has one socket defined, and it is carrying the output TS 1. Status Bar The top status bar shows whether the encoder is standalone or is managed by NMX, the device name and model, IP address, active alarm status, date and time. If the encoder is managed by NMX, you cannot configure it with SAG. Next to the encoder name, a drop-down menu for device tasks is available. Properties Opens the Platform > HW Inventory page to show the platform properties. Identify Unit Turns on/off the locator LED on the device. This is a toggle that changes the LED status. Reboot Reboots the device. Rebuild PSI Rebuilds PSI tables for all services on the device. You can set the PSI to rebuild automatically in the Administration > Global Settings > General. NOTE: When the device is controlled by NMX, you cannot apply changes using SAG. If you are switching device control from NMX to SAG, you must clear the configuration settings made while the device was under NMX control. See the SAG Platform > Backup/Restore page to restore the device to its default state. Navigation Tabs The tabs provide access to the different SAG pages. You perform the following tasks in each SAG page: Configuration Define the input services coming into the device. The GUI shows the physical inputs and a logical representation for each input, where you can define each input stream. Define the output services by building the logical output transport stream, configure encoding for video, audio, and other streams, add descriptors and manage PSI tables. Define the output ports/sockets and connect the services to them. DiviTrack Create DTMX pools. Add and manage the streams in each pool Harmonic Inc. All rights reserved. 9 Electra 9200 Release 01, Rev A

10 Chapter 2 Installation and Startup Using SAG, the web GUI Alarms Active Alarms See detailed information about the alarms that are actively asserted on the device. Once an alarm is remitted it is removed from this list. Alarm Log See the alarm history for the device. This includes active and remitted alarms. Error Log See the error history for the device. The error log contains a list of errors detected by the device since it was last started. Harmonic Technical Support may ask you to check the error log if you are having problems with a device. Core Files Manage any core dump files that may exist on the device. A core dump file is created by the device and can contain information for troubleshooting. Harmonic Technical Support may ask you to provide core files if you are having problems with a device. Device XML Save an XML file of your current configuration. If you are having problems on an encoder, Harmonic Technical Support might ask you to send them an XML file of your encoder configuration settings, to use for troubleshooting. Administration Global Settings Set device-level settings such device name, IGMP version, and front panel control. VBI Preferences Manage default behavior for 576i (PAL) input services that include VBI. These settings apply to any 576i service when the output aspect ratio setting for the video stream is set to take the aspect ratio from VI or WSS. Licensing View the feature licensing installed on the device. Date & Time Manage the device clock settings. NTP Enable NTP control of the device clock, and manage NTP servers. NTP is required is you are using external PSIP generation. SNMP Designate up to two trap listeners, or destinations, for SNMP messages. Remote Servers Define communication between the device and remote servers. Presently, sending QoS data to an Iris server is supported. PSIP Generators Set up communication with the external PSIP generators. You enable external PSIP for each transport in the output transport properties (Table View). Platform Firmware Upgrade Manage the device platform firmware version. The device stores up to two versions of platform firmware an active and a standby version. Both are stored in memory and you can switch between them. HW Inventory Review HW information and reset cards. Management Port Set the network addressing for the management of the device. Backup/Restore: Create and store backups of alternate configurations (presets) to switch easily between one configuration and another. Create backups and restore backup configurations for this device. It's a good idea to create regular backups of your configuration, and especially important to create a backup before making any changes. Restore the device to its default state. This clears any configuration settings Harmonic Inc. All rights reserved. 10 Electra 9200 Release 01, Rev A

11 Chapter 2 Installation and Startup Installing Platform Firmware Installing Platform Firmware To install new firmware on the encoder, first upload the new firmware to the device. Then, you reboot the encoder to begin using the new firmware. You can upload firmware any time, and reboot when it is convenient. The encoder holds up to two firmware versions the current version (the version that the encoder is using), and a second version held in memory. You can load either of these versions at any time, from the SAG Platform page (this requires rebooting the encoder). When you upload a new firmware version to the encoder, two things happen: The current version (that the encoder is using) moves into memory, replacing the version there (which is discarded). The new firmware you upload is queued to replace the version that the encoder is using, so it becomes the current version when you re-boot. You do not need to manually delete old firmware from the encoder. NOTE: Upgrading firmware deletes any device configuration presets you are storing on the device. To preserve a particular configuration, you must back up to a file and save it to another location. See the SAG Platform > Backup/Restore page for backup procedures. Installing new firmware: 1. If you are installing over a previous version, it s a good idea to save your current configuration (the services you have configured) to a file. Go to SAG Platform > Backup/Restore and select Backup Device Configuration to a File. 2. Copy the new platform firmware file to the device running SAG. The firmware file is named with the version number and has a.tgz file extension and checksum. For example, a sample file name could be: i_ tgz,712ca Load the new version to the device. Go to SAG Platform > Firmware Upgrade > Install New Firmware. Browse to the location of the new firmware file, and select the file. 4. Select Install to copy the firmware files to the encoder and activate them later. Select Install And Activate to copy the files to the encoder and reboot to activate the new firmware version. A warning message will appear advising you to wait until the process is complete. Follow the prompts and do not close the browser window until the uploading process completes. 5. When the firmware transfer finishes, a message confirms a successful upload. If you have chosen to install and activate, the device will reboot. This can take several minutes. 6. When you activate new firmware, you must refresh the browser window after the device reboots, to clear the cache and see the new version. NOTE: When upgrading from platform firmware with a previous version of SAG: if you still see the old version of SAG when you reboot, you may need to retype the device IP address to redirect the browser page to load the new GUI. Service Configuration Settings: When you install new firmware, the encoder restarts using the previous service configuration settings, if any. If there are new features in the firmware, default values are set for these fields. If you downgrade firmware versions, settings in the newer version that are not available in the older version are lost. Harmonic recommends saving your current configuration before changing the firmware version, so you have these settings available if you return to the current firmware version Harmonic Inc. All rights reserved. 11 Electra 9200 Release 01, Rev A

12 Chapter 2 Installation and Startup License Requirements NOTE: Licensing requirements may differ from one version to another. You must have the necessary hardware and feature licenses for the version you are installing, or service may be interrupted. For information about the requirements for your platform version and configuration, see the release notes that came with your platform firmware. License Requirements Licensing is required for many of the encoders and features supported on the Electra series platform. For a list of features that require licenses, see the release notes included with your software package. You cannot enable the features under license until the licenses are applied to the encoder. The encoder raises licensing alarms for the following circumstances: when a license is not available for a feature you are trying to configure to report how many days are left on a grace period or temporary license when a grace period or temporary license expires when you delete a license Alarms are remitted when you apply a valid license for the feature, or when you disable or delete the affected stream. For more information about licensing, see the online help and the release notes. Setting Up the Device Before you start configuring services, you need to set up the device communication and default settings. For the example in this guide, we will only set the minimum settings.go to the SAG Administration page to make the following settings: Global Settings Set the device name, and whether to automatically rebuild PSI (recommended) Date & Time Set the device clock, or enable NTP to control the device clock In this page you can also configure SNMP trap listeners for monitoring the device, define server communication with external PSIP generators, and indicate an Iris server to receive VQ data. What s Next When you can access SAG, have installed your encoder platform firmware, and acquired the licenses for the features you want to use, you are ready to begin configuring the input and output for your encoding programs. The instructions included in this guide will step through configuration of a basic service with SDI input, one video and one audio stream, and IP or ASI output. They include the steps for adding video streams to a DTMX pool (optional) 2013 Harmonic Inc. All rights reserved. 12 Electra 9200 Release 01, Rev A

13 Chapter 3 Electra 9200 Encoding Tutorial This chapter describes the minimal configuration to achieve end-to-end processing of a service containing one video and one audio stream, from SDI input to output via IP or ASI transport, on an Electra 9200 encoder. Workflow All service configuration is done in the SAG Configuration page. The page represents the service flow through the device, from left to right, input to output. As shown in Figure 3 1, there are four panels in the Configuration page. The Physical Inputs shows the inputs that are installed on the device. The Logical Inputs shows the services flowing from the inputs. The Logical Outputs shows the encoded services that are being output. The Physical Outputs shows the output ports and sockets that carry the output services. Figure 3 1: The Configuration page Configuring an Encoder with SDI Input and IP or ASI Output In this tutorial you will see how to configure encoding for a service from SDI input. You will see how to create and configure: The input service, including an HD video stream and an audio stream. The transport stream to carry the output service, including the video and audio streams, and descriptors. An IP transport to carry the output. An ASI transport to carry the output. This tutorial assumes an encoder with at least one A/V encoder card. It also assumes the encoder platform has no configuration specified for any streams. This tutorial will not cover encoding audio via a separate audio adapter card Harmonic Inc. All rights reserved. 13 Electra 9200 Release 01, Rev A

14 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Defining the Logical Inputs The first step is to define the service in Logical Inputs. For SDI input you must create the stream objects to match your input content. 1. Begin by displaying SAG in your browser. (See Displaying SAG for instructions.) The platform displays a SAG page similar to Figure In the Configuration page > Logical Inputs panel, right-click Baseband SDI 1 and choose Add New. Add a Baseband Video, and a Baseband Embedded Audio. Figure 3 2: Adding streams to Logical Inputs When you add the audio you indicate the group and pair that carry the audio. If you plan to have a stereo audio stream (or an audio passthrough stream), L/R will be taken into account. The device will discard C/LFE and Ls/Rs. For a real service, you would add all streams that correspond to the input content. You can then choose to include them in the output when you create the output transport stream. Any stream that you want to include in the output must be added here in the Logical Inputs first. For example, if you want to output another video or audio from the same source input, you create them here under Baseband SDI Harmonic Inc. All rights reserved. 14 Electra 9200 Release 01, Rev A

15 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Defining the Logical Outputs Next, create a transport stream in the Logical Outputs and add the input service to it. 1. In this example, we ll drag and drop the service from the Logical Inputs to the Logical Outputs and let SAG create the TS and Program objects automatically, as shown in Figure 3 3. Note that the TS is named TS 1. At this point, TS 1 is not assigned to an output port or socket. Drag Baseband SDI 1 to +Transport Stream SAG creates the TS and Program Figure 3 3: Dragging the input service to the output 2. Enter a descriptive name for the program and click OK. For this example, we ll leave all the default properties for the TS and program. TIP: SAG provides several methods for creating services, including drag-and-drop and manual menudriven methods. These are described in the online help. This guide only shows the drag-and-drop method. When you create services that include multiple outputs from a single source, you ll need to use a combination of these methods. For example, to create multiple output videos from one source, create the first service as described above. Add a second program to the TS manually. Then create the second video stream under the Baseband entry and drag it to the second program Harmonic Inc. All rights reserved. 15 Electra 9200 Release 01, Rev A

16 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Configuring the Video 1. Next, configure the video encoding properties. Right-click the video stream as shown in Figure 3 3 to open the properties page. In this page you set all of the encoding and preprocessing for the video stream. The video properties page includes multiple panels with settings for all aspects of the encoding process. Depending on your selections, panels are added or removed. For this example, we will only look at the main panel. The values here are set by default. To process the incoming video, you might need to change some of these settings. The most important settings to consider are in the Encoding section. The input settings must match the actual video input carried on the SDI port. Set the desired output properties for Coding Format, Resolution, Bitrate, and so on. For specific information about these fields, see the online help for this configuration page. Harmonic also recommends that you provide descriptive names for your streams and programs. By default, the encoder names your stream Video 1. You can provide a descriptive name on this page. 2. When you have made all your stream configuration settings, click Apply Harmonic Inc. All rights reserved. 16 Electra 9200 Release 01, Rev A

17 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Configuring the Audio 1. Configure the Audio encoding properties. Right-click the audio stream and select Properties. This page includes multiple panels with settings you can make for the audio stream. Depending on your selections, panels are added or removed. For this document, we will only look at the main panel. The values are set by default. To process the incoming audio, you might need to change some of these settings. The most important settings to consider are in the Encoding section. Since this stream will be passed through to the output, we will only configure the Bit Rate. To instruct the encoder to automatically create audio descriptors for this stream, select the check box. Harmonic also recommends that you provide descriptive names for your streams and programs. For specific information about the audio configuration fields, see the online help for this configuration page. 2. When you have made all your stream configuration settings, click Apply Harmonic Inc. All rights reserved. 17 Electra 9200 Release 01, Rev A

18 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Adding Descriptors To add the necessary descriptors and manage PSI table generation, you look at the services in the Logical Outputs panel while in Table View. You change the view at the top of the panel, as shown in Figure Change to Table View and right-click the stream for which you want to add or modify a descriptor. Figure 3 4: Adding Descriptors in Table View 2. When you have finished all the configuration settings, click Apply to commit the changes to the device Harmonic Inc. All rights reserved. 18 Electra 9200 Release 01, Rev A

19 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Configuring the Output Now that you have defined the transport stream (TS 1) that carries the service, you can assign it to an output port/socket. In the example configuration page, the device has both GbE and ASI output ports, as shown in Figure 3 5. Note that TS 1 is not assigned to a physical output yet. Figure 3 5: Physical Outputs Creating an IP Socket The Electra 9200 uses GbE ports 3 and 4 for output. In this example, we configure the GbE Port 3, add an IP socket, then assign TS 1 to the socket. 1. In the Physical Outputs panel, expand the Main Board to display the GbE Ports as seen in Figure First, set up the port. Right-click the GbE Port 3 entry and select Properties. Provide values for the network addresses and make sure the port is enabled. Note that this is where you set up port redundancy Harmonic Inc. All rights reserved. 19 Electra 9200 Release 01, Rev A

20 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Click Ok. For information about the settings you can make, see the online help for this configuration page. 3. Now, add a socket. Right-click GbE Port 3 again and select Add New. Set the IP Type to Unicast or Multicast and provide values for the IP Address and UDP Port. Note that this dialog has General and Advanced properties. Click Ok. The socket is added to the port, as shown in Figure Harmonic Inc. All rights reserved. 20 Electra 9200 Release 01, Rev A

21 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Figure 3 6: GbE port with socket 4. Drag and drop TS 1 to the new socket. Notice that the TS 1 entry now includes an IP address in its name the IP address of the socket that carries it. The socket shows the name of the transport stream it carries, TS Harmonic Inc. All rights reserved. 21 Electra 9200 Release 01, Rev A

22 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Configuring an ASI Port Sending the output TS to an ASI port is very similar to sending it to an IP socket. However, the ASI card needs no configuration, and the Ports 1 & 2 entry is already available under the card. 1. Right-click ASI Port 1 & 2 and select Properties. Make sure the port is enabled and set the output packet size, as desired. 2. Click Ok. 3. Drag and drop TS 1 to the ASI Port 1 & Harmonic Inc. All rights reserved. 22 Electra 9200 Release 01, Rev A

23 Chapter 3 Electra 9200 Encoding Tutorial Configuring an Encoder with SDI Input and IP or ASI Output Notice that the TS 1 entry now includes ASI Port in its name indicating that it is carried through the ASI port. 4. When you have made your program configuration settings, click Apply at the top of the configuration page. 5. Next, you should rebuild the PSI data for the encoder, and check for alarms. You can instruct the device to rebuild the PSI automatically in the SAG Administration > Global Settings > General page. It is enabled by default. If you do not have the device configured to automatically rebuild PSI, go to the device task menu and rebuild it manually at this time. 6. Finally, see if there any active alarms by checking the alarm indicators at the top of the page. As you add streams to the service, the GUI will report alarms. The current list of alarms is displayed in the Active Alarms tab at the bottom of the page. To resolve these alarms, you adjust the configuration of the streams, services, and transports for this device. When your configuration is complete, you should see no alarms and the indicators should be green Harmonic Inc. All rights reserved. 23 Electra 9200 Release 01, Rev A

24 Chapter 3 Electra 9200 Encoding Tutorial Summary Summary In this tutorial you saw how to create encoding streams for the SDI input to an A/V encoder card. The tutorial showed minimal configuration for a video stream and an audio stream. It showed how to assign the output TS to an IP socket, and to an ASI port. To encode a video program for real-world delivery, you will have to configure many other settings for your streams, services, and transports. To learn more about these other settings, please consult the online help for your device Harmonic Inc. All rights reserved. 24 Electra 9200 Release 01, Rev A

25 Chapter 4 Creating a DiviTrack DTMX Pool This chapter show how to create a DTMX pool for video streams from two programs. These instructions assume that you understand how to create services in SAG, as described in Chapter 3, Electra 9200 Encoding Tutorial. Creating a Pool You create pools for two or more video streams. All the streams in one pool must belong to the same transport stream. 1. In the Configuration page, create a transport stream with two programs, as shown in Figure 4 1. Each program contains a video stream these are the streams we ll add to a pool. Figure 4 1: Two programs with video streams 2. In the DiviTrack page, create and configure the pools. In the Pools table, click Add. In our example we ll name the pool Pool 1 -- Sports and News because we are pooling video streams from the Sports program and the News program. As soon as you add the pool, the Pool Configuration table appears so that you can configure its streams and settings Harmonic Inc. All rights reserved. 25 Electra 9200 Release 01, Rev A

26 Chapter 4 Creating a DiviTrack DTMX Pool Creating a Pool 3. In the Pool Configuration table, click Add to add a video stream. 4. Click Add again to add the next video stream. Your screen should like something like Figure 4 2. Notice that the device is calculating the pool bitrate as you add the streams to the pool. SAG adds the streams that are available from the existing transports, one-by-one as you click the Add button. If you don t want a stream in the pool, select the check box next to it and click Remove. Use the Resolution Conversion and Coding Format to help you identify the streams that you re adding. Figure 4 2: A pool with two video streams 5. For each video stream in the pool, set the properties as follows: VBR. The bitrate processing for this stream. If set to CBR, the stream is always assigned the nominal bitrate. Min Video Bitrate (Mbps). The minimum bitrate used for the stream in the pool. The Min Video Bitrate cannot be higher than the Nominal Video Bitrate. Use the default setting, or the lowest setting that the complexity of the video stream can tolerate. Max Video Bitrate (Mbps). The maximum bitrate used for the stream in the pool. Lowering the Max Bitrate for streams that are low priority in your program line-up can free up pool bandwidth for use by other programs. Priority. Sets the priority level for bitrate allocation. Enter a number from 1 to 5, where 5 is the highest priority. The default is 3. If all other conditions are the same for 2 streams, the one with higher priority receives more bitrate. For more information about setting minimum and maximum bitrates, see the online help topic Adjusting DTMX Bitrates. 6. Click Apply to commit the changes to the device. The pool will now manage the bitrate for these streams Harmonic Inc. All rights reserved. 26 Electra 9200 Release 01, Rev A

27 2013 Harmonic Inc. All rights reserved.